The "first party" bit is the scathing, indicative part..
Its Instagram's decision to "crown" a third party developer - Instragram has never expressed inability due to platform limitations - they always expressed lack of desire, probably from a philosophy of dis-taste towards Microsoft rooted in the prejudices of the founder or the group of developers at Instagram.
Or maybe marketshare and investment, like every other app maker.
Better than nokia maps and nokia transit on your iphone/android.
In his defence, what were the chances of that.
Instagram didn't even make an Android first-party app for 16 months after the iOS one.